Comparisons of USDA UV shadow-band irradiance measurements with TOMS satellite and DISORT model retrievels under all sky conditions
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2002-01-17
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Citation of Original Publication
James R. Slusser, Nickolay A. Krotkov, Wei Gao, Jay R. Herman, Gordon Labow, Gwen Scott, "Comparisons of USDA UV shadow-band irradiance measurements with TOMS satellite and DISORT model retrievels under all sky conditions," Proc. SPIE 4482, Ultraviolet Ground- and Space-based Measurements, Models, and Effects, (17 January 2002); https://doi.org/10.1117/12.452954
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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract
Comparisons of UV irradiances measured by the USDA UVB Monitoring and Research Network at 305 and 368 nm with retrievals from the NASA TOMS and a multiple scattering radiative transfer code were made for an 18-month period from January 1, 2000 through May 31, 2001 for Las Cruces, New Mexico, USA (32.6°N, 106.7°W, 1317 m elevation) and Billings, Oklahoma, USA (36.6°, 97.5°W, 317 m elevation). Agreement is generally within ±12% for all sky conditions and 8% for clear skies. The effects of aerosols is mostly < 5%, consistent with the measured aerosol optical depths at 368 nm within the range of 0.05 and 0.25.